CN206522127U - Oily-water seperating equipment under the applicable surface drive screw pump wells of single packer pipe string - Google Patents

Oily-water seperating equipment under the applicable surface drive screw pump wells of single packer pipe string Download PDF

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Publication number
CN206522127U
CN206522127U CN201720236067.4U CN201720236067U CN206522127U CN 206522127 U CN206522127 U CN 206522127U CN 201720236067 U CN201720236067 U CN 201720236067U CN 206522127 U CN206522127 U CN 206522127U
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China
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screw
oil
pipe
flow path
hydrocyclone
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Expired - Fee Related
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CN201720236067.4U
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Chinese (zh)
Inventor
李增亮
张继通
刘刚
刘斌
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China University of Petroleum UPC East China
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China University of Petroleum UPC East China
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Abstract

The utility model is related to technical field of oil production engineering, is particularly suitable for use in the downhole oil-water separation same well production-injection of high-water-cut oil-producing well, is oily-water seperating equipment under a kind of applicable surface drive screw pump wells of single packer pipe string.It is the structure using single packer, producing horizon is separated with water filling layer, oil reservoir production fluid from the bottom of the present apparatus, the petroleum pipeline interface of the present apparatus is directly incorporated into through oil sets annular space, the suction inlet of single-screw (single screw) pump is directly entered by crude oil liquid runner again, it is pressurized by single-screw (single screw) pump, into two stages of hydrocyclones (bipyramid hydrocyclone, single-cone hydrocyclone) carry out water-oil separating, overflowing liquid after separation gives rise to ground after bypass pipe mixing, underflow mixed liquor after separation passes through water injection pipe, check valve, suppress ball seat, screen casing, plug is injected into water filling layer, so that runner is greatly simplified.

Description

Oily-water seperating equipment under the applicable surface drive screw pump wells of single packer pipe string
Technical field
The present invention relates to technical field of oil production engineering, the downhole oil-water separation for being particularly suitable for use in high-water-cut oil-producing well is adopted with well Note, is oily-water seperating equipment under a kind of applicable surface drive screw pump wells of single packer pipe string.
Background technology
As oil field development enters the middle and later periods, the High water cut problem of Produced Liquid is gradually displayed, in order to solve height The problems that water-bearing zone comes, now to use downhole oil-water separation cyclone technique, the technology is by the oil reservoir Produced Liquid of High water cut more Directly separated in underground, concentration fluid then given rise into ground, the water isolated is recycled into the water filling layer of same well, One efficient, new technology of energy-saving and environmental protection.Current existing surface drive single screw pump downhole oil-water separation system, generally all Be faced with runner complicated and changeable, underground equipment not easy processing with maintenance etc. problems, these all limit the systematic difference Scope.
The content of the invention
The problem of runner is complicated during to solve surface drive single screw pump for downhole oil-water separation injection-production system in same well, this Invention provides oily-water seperating equipment under the surface drive screw pump wells that a kind of single packer pipe string is applicable.The device uses crude oil The bottom incorporation way of liquid, the i.e. crude oil liquid of producing horizon are incorporated into the present apparatus from the bottom of the present apparatus through oil sets annular space Petroleum pipeline interface, then the suction inlet of single-screw (single screw) pump is directly entered by special flow passage, the crude oil liquid after pump is pressurized is again Return to and water-oil separating is carried out in the present apparatus, so that the runner of the present apparatus is greatly simplified.
The present invention is for the technical scheme that is used of its technical problem of solution:The applicable ground driving spiral shell of single packer pipe string Oily-water seperating equipment under bar pump sump, is by sleeve pipe, oil pipe, sucker rod, connector for oil delivery pipe, shell body, single-screw (single screw) pump, overflow Siphunculus, overflow oil connection, three-way connection, upper intersection flow path structure, upper outer shell, bipyramid hydrocyclone, upper branch Stay tube, upper support seat, upper positioning seat, underflow stream bypass pipe, underflow stream oil connection, lower intersection flow path structure, lower case Body, single-cone hydrocyclone, lower support tube, lower support base, note hose coupling, water injection pipe, packer, check valve, suppress ball seat, What screen casing, plug, O-ring seal were constituted, it is characterised in that:Sleeve pipe be arranged on single unit system outermost, sucker rod lower end with Single-screw (single screw) pump is connected, and connector for oil delivery pipe internal diameter upper and lower side is machined with internal thread respectively, and external diameter lower end is machined with external screw thread, used respectively In connected pipes, single-screw (single screw) pump and shell body, oil pipe is connected through a screw thread respectively with single-screw (single screw) pump to be plugged in petroleum pipeline and connects respectively The top and bottom of head, shell body is enclosed on single-screw (single screw) pump, and upper end is connected by screw thread with connector for oil delivery pipe, and O is used between the two Type sealing ring is sealed, and lower end is connected with upper intersection flow path structure by screw thread, sealed between the two with O-ring seal, single spiral shell Bar pump lower end coordinates with upper intersection flow path structure, while being sealed between the two with O-ring seal;
Upper intersection flow path structure lower surface is machined with positioning hole, coaxial location and installation bipyramid hydrocyclone, two respectively Sealed between person with O-ring seal, the lower surface of lower intersection flow path structure is also machined with positioning hole, coaxial location and installation list cone Hydrocyclone, is sealed with O-ring seal between the two, and the inner facing cut of positioning hole is put down, and is machined with concentric with positioning hole Spout hole, and at spout hole process radial hole, radial hole exit is respectively machined with internal thread hydraulic fluid port, for connecting overflow Oil connection and underflow stream oil connection;
Upper intersection flow path structure external diameter upper and lower side is machined with external screw thread respectively, respectively with shell body and upper outer shell spiral shell Line is sealed, and installs O-ring seal progress end face seal additional respectively;Lower intersection flow path structure external diameter upper and lower side is machined with outer respectively Screw thread, respectively with upper outer shell and lower housing body thread seal, and installs O-ring seal progress end face seal, note additional respectively Water pipe head external diameter upper end is machined with external screw thread and lower housing body thread seal, and installs O-ring seal progress end face seal additional;
Upper support tube is used to support bipyramid hydrocyclone, and its upper end is connected with bipyramid hydrocyclone, lower end and upper branch Support seat is screwed, and upper support seat lower end coordinates with lower intersection flow path structure, and upper support seat outer end coordinates with upper outer shell, Bipyramid hydrocyclone lower end is inserted into positioning seat, and both are sealed by O-ring seals, and upper positioning seat flows with lower intersection Road joint is axially engaged, and both are sealed by O-ring seals;Lower support tube be used for support single-cone hydrocyclone, its upper end with Single-cone hydrocyclone is connected, and lower end is screwed with lower support base, and lower support base lower end coordinates with note hose coupling, lower support Seat outer end coordinates with lower housing body, and single-cone hydrocyclone lower end is inserted into note hose coupling, and both pass through O-ring seals Sealing;
Filling pipe joint is designed with internal thread, for connecting water injection pipe, and water injection pipe, which is connected through a screw thread, is plugged in water filling In pipe joint, packer is provided between water injection pipe and sleeve pipe, producing horizon and water filling layer are separated.
The annular fiowpath and 4 straight-through circular hole phases of processing in the middle part of connector for oil delivery pipe of the connector for oil delivery pipe center processing Logical, straight-through circular hole is communicated with single-screw (single screw) pump upper end, single-screw (single screw) pump lower end and upper intersection flow path structure upper end center circular hole runner Communicate, center hole runner is communicated with the tiltedly logical annulus hole of hypomere right-half plane in upper intersection flow path structure, tiltedly logical annulus hole with The eccentric circular hole processed on the basis of positioning hole is communicated, and thus constitutes the passage of crude oil liquid supercharging.
The tiltedly logical annulus hole (h) that the bipyramid hydrocyclone lower end passes through hypomere right-half plane in lower intersection flow path structure Communicated with the eccentric circular hole (j) processed on the basis of positioning hole, eccentric circular hole is easy to liquid stream tangentially to enter single cone hydraulic cyclone Device entrance, thus constitutes the passage of two-stage water-oil separating.
The bipyramid hydrocyclone spout hole and upper intersection flow path structure overflow runner, overflow oil connection, three Pass joint is communicated, single-cone hydrocyclone spout hole and lower intersection flow path structure overflow runner, underflow stream oil connection, underflow Stream bypass pipe is communicated, and underflow stream bypass pipe is communicated by three-way connection with overflow bypass pipe, and overflow bypass pipe is connected with three Head upper end is threadedly coupled by sealing, and three-way connection right-hand member is threadedly coupled with overflow oil connection left end by sealing, overflow Stream oil connection right-hand member is plugged in upper intersection flow path structure by sealing threaded connection, by three-way connection lower end and underflow stream Siphunculus upper end is threadedly coupled by sealing, and underflow stream bypass pipe lower end is connected with underflow stream oil connection left end by sealing screw thread Connect, underflow stream oil connection right-hand member is plugged in lower intersection flow path structure by sealing threaded connection, thus constitutes overflowing liquid Lift passage;The single-cone hydrocyclone lower end is sequentially connected downwards note hose coupling, water injection pipe, packer, check valve, beaten Pressure ball seat, screen casing, plug, thus constitute underflow mixed liquor re-injection passage.Packer is used for separating producing horizon with water filling layer, Check valve can prevent water filling layer aqueous reflux, suppress ball seat and the mode of setting of suppressing is provided for packer, screen casing is used for separation water and ground Layer sandstone, plug is used as closure water injection pipe.
The beneficial effects of the invention are as follows:High water cut produced fluid drops the oil content of re-injection fluid by water-oil separating twice It is low, the power cost for a large amount of recovered waters being lifted to ground is greatly reduced, meanwhile, also reduce harmful substance pair in recovered water The destruction of ecological environment;Packer separates producing horizon with water filling layer, Produced Liquid is directly entered single spiral shell through oil sets annular space Bar pump, it is to avoid Produced Liquid flows through the runner of complexity, reduces the pressure loss of Produced Liquid, is easily worked underground equipment, is easy to group Dress.
Brief description of the drawings
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is A-A sectional views in Fig. 1;
Fig. 3 is B-B sectional views in Fig. 1;
Fig. 4 is C-C sectional views in Fig. 1;
Fig. 5 is D-D sectional views in Fig. 1;
Fig. 6 is E-E sectional views in Fig. 1;
Fig. 7 is F partial enlarged drawings in Fig. 1;
Fig. 8 is G partial enlarged drawings in Fig. 1.
Symbol description:
1. sleeve pipe, 2. oil pipes, 3. sucker rods, 4. connector for oil delivery pipe, 5. shell bodies, 6. single-screw (single screw) pumps, 7. overflows are bypassed Pipe, 8. overflow oil connections, 9. three-way connections, intersection flow path structure, 11. upper outer shells, 12. bipyramid waterpower on 10. Cyclone, support tube on 13., 14. upper support seats, positioning seat on 15., 16. underflow stream bypass pipes, 17. underflow stream oil connections, 18. lower intersection flow path structure, 19. lower housing bodies, 20. single-cone hydrocyclones, 21. times support tubes, 22. times support bases, 23. note hose coupling, 24. water injection pipes, 25. packers, 26. check valves, 27. suppress ball seat, 28. screen casings, 29. plugs, 30, 31st, 32,33,34,35,36,37,38,39,40,41,42,43,44,45,46.O type sealing rings;A to j is liquid stream runner.
Embodiment
The invention will be further described with example below in conjunction with the accompanying drawings:
As shown in figures 1-8, oily-water seperating equipment under a kind of applicable surface drive screw pump wells of single packer pipe string, be by Sleeve pipe (1), oil pipe (2), sucker rod (3), connector for oil delivery pipe (4), shell body (5), single-screw (single screw) pump (6), overflow bypass pipe (7), overflow oil connection (8), three-way connection (9), upper intersection flow path structure (10), upper outer shell (11), bipyramid water Power cyclone (12), upper support tube (13), upper support seat (14), upper positioning seat (15), underflow stream bypass pipe (16), underflow stream oil Pipe joint (17), lower intersection flow path structure (18), lower housing body (19), single-cone hydrocyclone (20), lower support tube (21), lower support base (22), note hose coupling (23), water injection pipe (24), packer (25), check valve (26), suppress ball seat (27), screen casing (28), plug (29), O-ring seal (30-46) are constituted, it is characterised in that:Sleeve pipe (1) is arranged on overall fill The outermost put, sucker rod (3) lower end is connected with single-screw (single screw) pump (6), and connector for oil delivery pipe (4) internal diameter upper and lower side is machined with interior respectively Screw thread, external diameter lower end is machined with external screw thread, is respectively used to connected pipes (2), single-screw (single screw) pump (6) and shell body (5), oil pipe (2) It is connected through a screw thread the top and bottom for being plugged in oil pipeline joint (4) respectively, shell body (5) respectively with single-screw (single screw) pump (6) It is enclosed on single-screw (single screw) pump (6), upper end is connected by screw thread with connector for oil delivery pipe (4), it is close with O-ring seal (30) between the two Envelope, lower end is connected by screw thread with upper intersection flow path structure (10), is sealed between the two with O-ring seal (32), single screw rod Pump (6) lower end coordinates with upper intersection flow path structure (10), while being sealed between the two with O-ring seal (31);
Upper intersection flow path structure (10) lower surface is machined with positioning hole, coaxial location and installation bipyramid hydrocyclone respectively (12), sealed between the two with O-ring seal (33,34,36), the lower surface of lower intersection flow path structure (18), which is also machined with, determines Position hole, coaxial location and installation single-cone hydrocyclone (20) is sealed with O-ring seal (41,42,44), will positioned between the two The inner facing cut in hole is put down, and is machined with the spout hole concentric with positioning hole, and processing radial hole, radial direction hole exits at spout hole Place is respectively machined with internal thread hydraulic fluid port, for connecting overflow oil connection (8) and underflow stream oil connection (17);
Upper intersection flow path structure (10) external diameter upper and lower side is machined with external screw thread respectively, respectively with shell body (5) and top Shell body (11) thread seal, and install O-ring seal (32,36) progress end face seal additional respectively;Lower intersection flow path structure (18) external diameter upper and lower side is machined with external screw thread respectively, respectively with upper outer shell (11) and lower housing body (19) thread seal, And installing O-ring seal (40,43) progress end face seal additional respectively, note hose coupling external diameter upper end is machined with outside external screw thread and bottom Housing (19) thread seal, and install O-ring seal (46) progress end face seal additional;
Upper support tube (13) is used to support bipyramid hydrocyclone (12), its upper end and bipyramid hydrocyclone (12) phase Even, lower end is screwed with upper support seat (14), and upper support seat (14) lower end coordinates with lower intersection flow path structure (18), upper branch Support seat (14) outer end with upper outer shell (11) to coordinate, bipyramid hydrocyclone (12) lower end is inserted into positioning seat (15), Both are sealed by O-ring seals (38), and upper positioning seat (15) axially engages with lower intersection flow path structure (18), and both pass through O-ring seals (39) are sealed;Lower support tube (21) is used to support single-cone hydrocyclone (20), its upper end and single cone hydraulic cyclone Device (20) is connected, and lower end is screwed with lower support base (22), and lower support base (22) lower end coordinates with note hose coupling (23), under Support base (22) outer end coordinates with lower housing body (19), and single-cone hydrocyclone (20) lower end is inserted into note hose coupling (23) In, both are sealed by O-ring seals (45);
Filling pipe joint (23) is designed with internal thread, and for connecting water injection pipe (24), water injection pipe (24) is connected by screw thread Patch loaded in filling pipe joint (23), packer (25) is provided between water injection pipe (24) and sleeve pipe (1), by producing horizon and note Water layer is separated.
4 processed in the middle part of the annular fiowpath (c) and connector for oil delivery pipe (4) of connector for oil delivery pipe (4) the center processing are straight Logical circular hole (b) is communicated, and straight-through circular hole (b) is communicated with single-screw (single screw) pump upper end, single-screw (single screw) pump lower end and upper intersection flow path structure (10) upper end center circular hole runner (d) is communicated, center hole runner (d) and hypomere right-half plane in upper intersection flow path structure (10) Tiltedly logical annulus hole (e) communicate, tiltedly lead to annulus hole (e) and communicated with the eccentric circular hole (g) processed on the basis of positioning hole, thus Constitute the passage of crude oil liquid supercharging.
Bipyramid hydrocyclone (12) lower end is led to by the oblique of hypomere right-half plane in lower intersection flow path structure (18) (the tiltedly logical annulus hole (h) of middle hypomere right-half plane communicates (h) to annulus hole with the eccentric circular hole (j) processed on the basis of positioning hole Communicated with the eccentric circular hole (j) processed on the basis of positioning hole, eccentric circular hole is easy to liquid stream tangentially to enter single cone hydraulic cyclone Device (20) entrance, thus constitutes the passage of two-stage water-oil separating.
Bipyramid hydrocyclone (12) spout hole and upper intersection flow path structure (10) overflow runner (f), overflow Oil connection (8), three-way connection (9) are communicated, and single-cone hydrocyclone (20) spout hole overflows with lower intersection flow path structure (18) Stream runner (i), underflow stream oil connection (17), underflow stream bypass pipe (14) are communicated, and underflow stream bypass pipe (16) is connected by three Head (9) is communicated with overflow bypass pipe (7), and overflow bypass pipe (7) is threadedly coupled with three-way connection (9) upper end by sealing, Three-way connection (9) right-hand member is threadedly coupled with overflow oil connection (8) left end by sealing, overflow oil connection (8) right-hand member It is plugged in by sealing threaded connection in upper intersection flow path structure (10), three-way connection (9) lower end and underflow stream bypass pipe (16) upper end is threadedly coupled by sealing, and underflow stream bypass pipe (16) lower end passes through sealing with underflow stream oil connection (17) left end Threaded connection, underflow stream oil connection (17) right-hand member is plugged in lower intersection flow path structure (18) by sealing threaded connection, Thus overflowing liquid lifting passage is constituted;Single-cone hydrocyclone (20) lower end be sequentially connected downwards note hose coupling (23), Water injection pipe (24), packer (25), check valve (26), ball seat (27), screen casing (28), plug (29) are suppressed, thus constitute underflow Mixed liquor re-injection passage.Packer (25) is used for separating producing horizon with water filling layer, and check valve (26) can prevent water filling layer water Flow backwards, suppress ball seat (27) and provide the mode of setting of suppressing for packer (25), screen casing (28) is used for separation water and stratum sandstone, silk Stifled (29) are used as closure water injection pipe.
Workflow is:During system worked well, the High water cut fluid of oil-producing formation is through oil sets annular space (a), petroleum pipeline After the liquid runner (b) of joint (4) and (c), enter and be pressurized in single-screw (single screw) pump (6), the crude oil liquid after supercharging by pump row Outlet enters the entrance channel (d) of upper intersection flow path structure (10), then passes through the runner of upper intersection flow path structure (10) (e) it is tangential to enter in bipyramid hydrocyclone (12) and after (g), water-oil separating is carried out in bipyramid hydrocyclone (12), point Liquid flow point from after is two parts:A part is overflow mixed liquor, sequentially passes through overflow runner (f), overflow oil connection (8), after three-way connection (9), it is expelled in overflow bypass pipe (6);Another part is underflow mixed liquor, by lower intersection runner The runner (h) and (j) of joint (18), tangentially enter in single-cone hydrocyclone (20) and carry out water-oil separating again, after separation Liquid stream be also classified into two parts:A part is overflow mixed liquor, sequentially pass through overflow runner (i), underflow stream oil connection (17), After underflow stream bypass pipe (16), the overflowing liquid isolated with bipyramid hydrocyclone (12) is mixed, and is passed through overflow bypass pipe (7) Given rise to ground;Another part is underflow mixed liquor, is entered through note hose coupling (23) in water injection pipe (24), then pass through successively Check valve (26) is crossed, ball seat (27), screen casing (28) etc. is suppressed and is injected into water filling layer, so far, downhole oil-water separation and Tong Jing is completed The process of water filling.
For the ordinary skill in the art, according to the teachings of the present invention, do not depart from the present invention principle with In the case of spirit, changes, modifications, replacement and the modification carried out to embodiment still fall within protection scope of the present invention it It is interior.

Claims (4)

1. oily-water seperating equipment under the applicable surface drive screw pump wells of single packer pipe string, is by sleeve pipe (1), oil pipe (2), takes out Beam hanger (3), connector for oil delivery pipe (4), shell body (5), single-screw (single screw) pump (6), overflow bypass pipe (7), overflow oil connection (8), three-way connection (9), upper intersection flow path structure (10), upper outer shell (11), bipyramid hydrocyclone (12), upper support Manage (13), upper support seat (14), upper positioning seat (15), underflow stream bypass pipe (16), underflow stream oil connection (17), lower intersection Flow path structure (18), lower housing body (19), single-cone hydrocyclone (20), lower support tube (21), lower support base (22), water filling Pipe joint (23), water injection pipe (24), packer (25), check valve (26), suppress ball seat (27), screen casing (28), plug (29), O Type sealing ring (30-46) composition, it is characterised in that:Sleeve pipe (1) is arranged on the outermost of single unit system, sucker rod (3) lower end It is connected with single-screw (single screw) pump (6), connector for oil delivery pipe (4) internal diameter upper and lower side is machined with internal thread respectively, and external diameter lower end is machined with outer spiral shell Line, is respectively used to connected pipes (2), single-screw (single screw) pump (6) and shell body (5), and oil pipe (2) passes through spiral shell respectively with single-screw (single screw) pump (6) Line connects the top and bottom for being plugged in oil pipeline joint (4) respectively, and shell body (5) is enclosed on single-screw (single screw) pump (6), and upper end leads to Cross screw thread to be connected with connector for oil delivery pipe (4), sealed between the two with O-ring seal (30), lower end passes through screw thread and upper intersection Flow path structure (10) is connected, and is sealed between the two with O-ring seal (32), single-screw (single screw) pump (6) lower end connects with upper intersection runner Head (10) coordinates, while being sealed between the two with O-ring seal (31);
Upper intersection flow path structure (10) lower surface is machined with positioning hole, coaxial location and installation bipyramid hydrocyclone respectively (12), sealed between the two with O-ring seal (33,34,36), the lower surface of lower intersection flow path structure (18), which is also machined with, determines Position hole, coaxial location and installation single-cone hydrocyclone (20) is sealed with O-ring seal (41,42,44), will positioned between the two The inner facing cut in hole is put down, and is machined with the spout hole concentric with positioning hole, and processing radial hole, radial direction hole exits at spout hole Place is respectively machined with internal thread hydraulic fluid port, for connecting overflow oil connection (8) and underflow stream oil connection (17);
Upper intersection flow path structure (10) external diameter upper and lower side is machined with external screw thread respectively, respectively with shell body (5) and upper case Body (11) thread seal, and install O-ring seal (32,35) progress end face seal additional respectively;Lower intersection flow path structure (18) is outside Footpath upper and lower side is machined with external screw thread respectively, respectively with upper outer shell (11) and lower housing body (19) thread seal, and respectively Install O-ring seal (40,43) additional and carry out end face seal, note hose coupling external diameter upper end is machined with external screw thread and lower housing body (19) thread seal, and install O-ring seal (46) progress end face seal additional;
Upper support tube (13) is used to support bipyramid hydrocyclone (12), and its upper end is connected with bipyramid hydrocyclone (12), under End is screwed with upper support seat (14), and upper support seat (14) lower end coordinates with lower intersection flow path structure (18), upper support seat (14) outer end coordinates with upper outer shell (11), and bipyramid hydrocyclone (12) lower end is inserted into positioning seat (15), both Sealed by O-ring seals (38), upper positioning seat (15) axially engages with lower intersection flow path structure (18), and both pass through O shapes Sealing ring (39) is sealed;Lower support tube (21) is used to support single-cone hydrocyclone (20), its upper end and single-cone hydrocyclone (20) it is connected, lower end is screwed with lower support base (22), lower support base (22) lower end coordinates with note hose coupling (23), lower branch Support seat (22) outer end with lower housing body (19) to coordinate, single-cone hydrocyclone (20) lower end is inserted into note hose coupling (23) In, both are sealed by O-ring seals (45);
Note hose coupling (23) is designed with internal thread, and for connecting water injection pipe (24), water injection pipe (24) is connected through a screw thread inserting In note hose coupling (23), between water injection pipe (24) and sleeve pipe (1) be provided with packer (25), by producing horizon and water filling layer every Open.
2. oily-water seperating equipment under the applicable surface drive screw pump wells of single packer pipe string according to claim 1, its It is characterised by:4 processed in the middle part of the annular fiowpath (c) and connector for oil delivery pipe (4) of connector for oil delivery pipe (4) the center processing are straight Logical circular hole (b) is communicated, and straight-through circular hole (b) is communicated with single-screw (single screw) pump upper end, single-screw (single screw) pump lower end and upper intersection flow path structure (10) upper end center circular hole runner (d) is communicated, center hole runner (d) and hypomere right-half plane in upper intersection flow path structure (10) Tiltedly logical annulus hole (e) communicate, tiltedly lead to annulus hole (e) and communicated with the eccentric circular hole (g) processed on the basis of positioning hole, thus Constitute the passage of crude oil liquid supercharging.
3. oily-water seperating equipment under the applicable surface drive screw pump wells of single packer pipe string according to claim 1, its It is characterised by:Bipyramid hydrocyclone (12) lower end is led to by the oblique of hypomere right-half plane in lower intersection flow path structure (18) Annulus hole (h) is communicated with the eccentric circular hole (j) processed on the basis of positioning hole, and eccentric circular hole is easy to liquid stream tangentially to enter single cone Hydrocyclone (20) entrance, thus constitutes the passage of two-stage water-oil separating.
4. oily-water seperating equipment under the applicable surface drive screw pump wells of single packer pipe string according to claim 1, its It is characterised by:Bipyramid hydrocyclone (12) spout hole and upper intersection flow path structure (10) overflow runner (f), overflow Oil connection (8), three-way connection (9) are communicated, and single-cone hydrocyclone (20) spout hole overflows with lower intersection flow path structure (18) Stream runner (i), underflow stream oil connection (17), underflow stream bypass pipe (16) are communicated, and underflow stream bypass pipe (16) is connected by three Head (9) is communicated with overflow bypass pipe (7), and overflow bypass pipe (7) is threadedly coupled with three-way connection (9) upper end by sealing, Three-way connection (9) right-hand member is threadedly coupled with overflow oil connection (8) left end by sealing, overflow oil connection (8) right-hand member It is plugged in by sealing threaded connection in upper intersection flow path structure (10), three-way connection (9) lower end and underflow stream bypass pipe (16) upper end is threadedly coupled by sealing, and underflow stream bypass pipe (16) lower end passes through sealing with underflow stream oil connection (17) left end Threaded connection, underflow stream oil connection (17) right-hand member is plugged in lower intersection flow path structure (18) by sealing threaded connection, Thus overflowing liquid lifting passage is constituted;Single-cone hydrocyclone (20) lower end be sequentially connected downwards note hose coupling (23), Water injection pipe (24), packer (25), check valve (26), ball seat (27), screen casing (28), plug (29) are suppressed, thus constitute underflow Mixed liquor re-injection passage.
CN201720236067.4U 2017-03-13 2017-03-13 Oily-water seperating equipment under the applicable surface drive screw pump wells of single packer pipe string Expired - Fee Related CN206522127U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110407347A (en) * 2019-08-03 2019-11-05 中国石油大学(华东) A kind of oil water separator
CN112523739A (en) * 2020-12-28 2021-03-19 西南石油大学 Underground hydraulic drive spiral-cyclone coupling tube separator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110407347A (en) * 2019-08-03 2019-11-05 中国石油大学(华东) A kind of oil water separator
CN112523739A (en) * 2020-12-28 2021-03-19 西南石油大学 Underground hydraulic drive spiral-cyclone coupling tube separator
CN112523739B (en) * 2020-12-28 2021-11-16 西南石油大学 Underground hydraulic drive spiral-cyclone coupling tube separator

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